Antonyms for doubtful
ˈdaʊt fəldoubt·ful

English Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. doubtful

   Equivocal (Latin equus, equal, and vox, voice, word) denotes that which may equally well be understood in either of two or more ways. Ambiguous (Latin ambi, around, and ago, drive, lead) signifies lacking in distinctness or certainty, obscure or doubtful through indefiniteness of expression. Ambiguous is applied only to spoken or written statements; equivocal has other applications. A statement is ambiguous when it leaves the mind of the reader or hearer to fluctuate between two meanings, which would fit the language equally well; it is equivocal when it would naturally be understood in one way, but is capable of a different interpretation; an equivocal expression is, as a rule, intentionally deceptive, while an ambiguous utterance may be simply the result of a want either of clear thought or of adequate expression. That which is enigmatical must be guessed like a riddle; a statement may be purposely made enigmatical in order to provoke thought and study. That is doubtful which is fairly open to doubt; that is dubious which has become the subject of doubts so grave as scarcely to fall short of condemnation; as, a dubious reputation. Questionable may be used nearly in the sense either of dubious or of doubtful; a questionable statement is one that must be proved before it can be accepted. To say that one's honesty is questionable is a mild way of saying that in the opinion of the speaker he is likely to prove dishonest. Equivocal is sometimes, tho more rarely, used in this sense. A suspicious character gives manifest reason to be suspected; a suspicious temper is inclined to suspect the motives and intentions of others, with or without reason. Compare CLEAR.

   Antonyms:
   certain, clear, distinct, evident, indisputable, indubitable, lucid, manifest, obvious, perspicuous, plain, unambiguous, unequivocal, unquestionable, unquestioned

   Synonyms:
   ambiguous, dubious, enigmatic, enigmatical, equivocal, indefinite, indeterminate, indistinct, obscure, perplexing, questionable, suspicious, uncertain

Princeton's WordNetRate these antonyms:0.0 / 0 votes

1. doubtful, dubious, dubitable, in question(p)adjective

   open to doubt or suspicion

   "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney

   Antonyms:
   certain(p), settled, sure, unquestionable

2. doubtful, dubiousadjective

   fraught with uncertainty or doubt

   "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"; "dubious about agreeing to go"

   Antonyms:
   certain(p), sure, unquestionable, settled

   Synonyms:
   tentative, in question(p), dubious, dubitable

3. doubtful, tentativeadjective

   unsettled in mind or opinion

   "drew a few tentative conclusions"

   Antonyms:
   sure, settled, unquestionable, certain(p)

   Synonyms:
   dubitable, probationary, tentative, provisionary, in question(p), provisional, dubious

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. doubtfuladjective

   Antonyms:
   certain, implicit, sure, unquestionable, unwavering

   Synonyms:
   unsettled, undetermined, dubious, wavering, precarious, undecided, irresolute, questionable, involved, ambiguous, enigmatical, problematical, equivocal, vague, indefinite

How to use doubtful in a sentence?

1. John Boehner:

   When the Democrats had total control of the Congress they couldn't find the votes, it's doubtful the votes are here to raise the gas tax again. … I’ve never voted to raise the gas tax. We'll have to work our way through it.

2. Jeffrey Lewis:

   I'm someone who thinks that they probably would( survive reentry). There are some people who are somewhat doubtful about that.

3. Ellen Fitzpatrick:

   The message is one of very brisk activism on the part of The President to address the crisis at hand, which of course is what Franklin Roosevelt did as well, i think the level of activism on Biden's part is very, very notable. President Joe Biden ambition is great. President Joe Biden success may be more doubtful. But I think this shift in tone is itself important.

4. Valery Nesterov:

   Totally bypassing Ukraine in the time that has been set is doubtful, we believe that in 5 to 10 years relations with Ukraine will stabilise and some of the transit flows will remain.

5. Ali Vaez:

   Some Iranian leaders believe that in case of failure, they can count on their neighbors to skirt the sanctions and bank on big power rivalries to undercut the restrictions, but this strategy's success is far from certain, likewise, Russia and China have repeatedly sided with the West in isolating Iran. Similarly doubtful is how much more the economy could recover without meaningful sanctions relief, amidst plummeting oil prices.

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